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Fix strict aliasing issue with call to rb_id_table_lookup()

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Previously, GCC 11 with -O2 LTO issues -Wmaybe-uninitialized here.
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Alan Wu 2022-04-25 14:30:54 -04:00 • committed by GitHub
parent 9c44b5fbc8
commit 5c61caa481
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Notes: git 2022-04-26 03:31:14 +09:00 
Merged: https://github.com/ruby/ruby/pull/5844

Merged-By: XrXr
1 changed files with 3 additions and 2 deletions
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5
vm_method.c
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@ -139,10 +139,11 @@ void rb_clear_constant_cache(void) {}
void
rb_clear_constant_cache_for_id(ID id)
{
VALUE lookup_result;
rb_vm_t *vm = GET_VM();
st_table *ics;
if (rb_id_table_lookup(vm->constant_cache, id, (VALUE *) &ics)) {
if (rb_id_table_lookup(vm->constant_cache, id, &lookup_result)) {
st_table *ics = (st_table *)lookup_result;
st_foreach(ics, rb_clear_constant_cache_for_id_i, (st_data_t) NULL);
ruby_vm_constant_cache_invalidations += ics->num_entries;
}